Drip emitter

An irrigation line tube (5) formed in a hollow body having a first end, a second end, an outer surface, and an inner surface, the irrigation line tube comprising:

• dripping holes (15, 55) penetrating the outer surface and the inner surface of the irrigation line tube;
• and
• a plurality of irrigation drip emitters provided in series inside the irrigation line tube, wherein each of the irrigation drip emitters comprises:
• a hollow body having a first end (100), a second end (500), an outer surface (200), and an inner surface (300);
• a first end wall (11) formed on the outer surface (200) at or near the first end (100);
• a second end wall (51) formed on the outer surface (200) at or near the second end (500);
• a first inner wall (21) formed on the outer surface (200) at or near the first end (211) and a second end (212);
• a second inner wall (41) formed on the outer surface (200) and having a first end (411) and a second end (412);
• an inlet recess (30) defined by the outer surface (200), the second end (212) of the first inner wall (21), and the second end (412) of the second inner wall (41) and provided with one or more inlet holes (35) through which a fluid flowing along the inner surface (300) is configured to be supplied to the inlet recess (30);
• a first pool (10) defined by the outer surface (200), the first end wall (11), and the first end (211) of the first inner wall (21);
• a second pool (50) defined by the outer surface (200), the second end wall (51), and the first end (411) of the second inner wall (41);
• and
• an elastic band (60) surrounding at least one of the inlet holes (35) provided in the inlet recess (30),
• wherein the first inner wall (21) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a first labyrinth fluid flow path (20),
• wherein the second inner wall (41) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a second labyrinth fluid flow path (40), and
• wherein the elastic band (60) is configured to move between a closed position where the elastic band (60) is in a tight contact with the inlet holes (35) to prevent a fluid from flowing out of the inlet holes (35) and an open position where the elastic band (60) is expanded by a fluid flowing out of the inlet holes (35) to thereby allow the fluid to flow to the inlet recess (30),
• wherein a cross-sectional area of an inner surface (300) of one of the irrigation drip emitters (1) is greater or small than a cross-sectional area of an inner surface (300) of another of the irrigation drip emitters (1) adjacent to the one of the irrigation drip emitters (1).

An irrigation drip emitter (1) comprising:

• a hollow body having a first end (100), a second end (500), an outer surface (200), and an inner surface (300);
• a first end wall (11) formed on the outer surface (200) at or near the first end (100);
• a second end wall (51) formed on the outer surface (200) at or near the second end (500);
• a first inner wall (21) formed on the outer surface (200) and having a first end (211) and a second end (212);
• a second inner wall (41) formed on the outer surface (200) and having a first end (411) and a second end (412);
• an inlet recess (30) defined by the outer surface (200), the second end (212) of the first inner wall (21), and the second end (412) of the second inner wall (41) and provided with one or more inlet holes (35) through which a fluid flowing along the inner surface (300) is configured to be supplied to the inlet recess (30);
• a first pool (10) defined by the outer surface (200), the first end wall (11), and the first end (211) of the first inner wall (21);
• a second pool (50) defined by the outer surface (200), the second end wall (51), and the first end (411) of the second inner wall (41);
• and
• an elastic band (60) surrounding at least one of the inlet holes (35) provided in the inlet recess (30),
• wherein the first inner wall (21) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a first labyrinth fluid flow path (20),
• wherein the second inner wall (41) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a second labyrinth fluid flow path (40),
• wherein a width of the first labyrinth fluid flow path (20) gradually decreases as it goes from the second end (212) of the first inner wall (21) towards the first end (211) of the first inner wall (21),
• wherein a width of the second labyrinth fluid flow path (40) gradually decreases as it goes from the second end (412) of the second inner wall (41) towards the first end (411) of the second inner wall (41), and
• wherein the elastic band (60) is configured to move between a closed position where the elastic band (60) is in a tight contact with the inlet holes (35) to prevent a fluid from flowing out of the inlet holes (35) and an open position where the elastic band (60) is expanded by a fluid flowing out of the inlet holes (35) to thereby allow the fluid to flow to the inlet recess (30).

An irrigation drip emitter (1) comprising:

• a hollow body having a first end (100), a second end (500), an outer surface (200), and an inner surface (300);
• a first end wall (11) formed on the outer surface (200) at or near the first end (100);
• a second end wall (51) formed on the outer surface (200) at or near the second end (500);
• a first inner wall (21) formed on the outer surface (200) and having a first end (211) and a second end (212);
• a second inner wall (41) formed on the outer surface (200) and having a first end (411) and a second end (412);
• an inlet recess (30) defined by the outer surface (200), the second end (212) of the first inner wall (21), and the second end (412) of the second inner wall (41) and provided with one or more inlet holes (35) through which a fluid flowing along the inner surface (300) is configured to be supplied to the inlet recess (30);
• a first pool (10) defined by the outer surface (200), the first end wall (11), and the first end (211) of the first inner wall (21);
• a second pool (50) defined by the outer surface (200), the second end wall (51), and the first end (411) of the second inner wall (41);
• and
• an elastic band (60) surrounding at least one of the inlet holes (35) provided in the inlet recess (30),
• wherein the first inner wall (21) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a first labyrinth fluid flow path (20),
• wherein the second inner wall (41) includes at least one vertical wall, at least one horizontal wall, or a combination thereof to define a second labyrinth fluid flow path (40),
• wherein the elastic band (60) is configured to move between a closed position where the elastic band (60) is in a tight contact with the inlet holes (35) to prevent a fluid from flowing out of the inlet holes (35) and an open position where the elastic band (60) is expanded by a fluid flowing out of the inlet holes (35) to thereby allow the fluid to flow to the inlet recess (30), and
• wherein the at least one vertical wall and the at least one horizontal wall of the first inner wall (21) include at least one vertical sub-wall and at least one horizontal sub-wall, or the at least one vertical wall and the at least one horizontal wall of the second inner wall (41) include at least one vertical sub-wall and at least one horizontal sub-wall.